Personal Information
We collect the personal data that you volunteer on forms which you submit to us for on-line competitions and in emails that you send to us. In addition we automatically gather details of browser types and IP addresses of the users who visit our site. We do not release this information to any outside party, except in suspected fraud cases.
https://localbitcoins.com/terms_of_serviceAccording to their terms of service, they don't provide personal info to third parties. Suppose it could be an employee leaking the email addresses
I don't have an account at local bitcoins but still received an email of this sorts. Might be from another service or they collect from multiple services.